522 



LEGUMLNOSAE (PULSE FAMILY) 



D. canadense. 



lanceolate or ovate-lanceolate, obtuse, with numer- 

 ous straightish veins, much longer than the petiole, 

 3.7-7.5 cm. long ; flowers showy, larger than in any 

 of our other species, 8-12 mm. long. (Meibomia 

 Ktze.) Open woods and banks of streams, N. B. 

 to N. C., L. Winnipeg, Kan., and Okla. FIG. 797. 



16. D. sessilifolium (Torr.) T. &G. Stem pubes- 

 cent, 6-12 dm. high; leaves nearly sessile; leaflets 

 linear or linear-oblong, blunt, thickish, reticulated, 

 rough above, downy beneath ; branches of the 

 panicle long ; flowers small. (Meibomia Ktze.) 



Sandy soil, s. e. Mass, to Pa. ; and from O. and Mich, to 111., s. to Miss. 



and Tex. 



<- -t- Stems ascending, 3-9 dm. high ; bracts small ; racemes or panicles elon- 

 gated and loosely flowered ; flowers small. 



17. D. rigidum (Ell.) DC. Stem branching, somewhat hoary, like the lower 

 surface of the leaves, with a close roughish pubescence ; leaflets ovate-oblong, 

 blunt, thickish, reticulated-veiny, rather rough above, the lateral ones longer 

 than the petiole. (Meibomia Ktze.) Dry hillsides, s. N. H. 



and e. Mass, to Fla., Mich., Neb., and La. FIG. 798. 



18. D. obtusum (Muhl.) DC. Stem slender, hairy or rough- 

 pubescent; leaves crowded, on very short hairy petioles ; leaflets 

 round-ovate or oval, thickish, more or less hairy on the margins 



and underneath, 1.2-2.5 cm. long. (D. ciliare DC. ; Meibomia 



obtusa Vail.) Dry hills and sandy fields, Mass, to Fla., w. to 790 r> ruridum 

 Ont., Mich., Mo., and Tex. 



19. D. marildndicum (L.) DC. Nearly smooth throughout, slender; leaflets 

 ovate or roundish, very obtuse, thin, the lateral ones about the length of the 



slender petiole; otherwise resembling the preceding. (Meibomia 

 Ktze.) Copses, Mass, to Fla., w. to Minn., Mo., and La. 



*- 4- -i- Stems reclining or prostrate ; racemes loosely flowered. 



20. D. lineatum (Michx.) DC. Stem minutely pubescent, 

 striate-angled ; leaflets orbicular, smoothish, 1-2.5 cm. long, 

 much longer than the petiole ; pod scarcely stalked in the calyx. 

 (Meibomia arenicola Vail.) Dry soil, Md. and Va. to Fla. and 

 La. ; also (?) Erie Co., O. (Moseley). FIG. 799. 



799. D. lineatum. 



39. LESPEDEZA Michx. BUSH CLOVER 



Calyx 5-cleft ; the lobes nearly equal, slender. 

 1) ; anthers all alike. Pods of a single 

 the lower joint empty and stalk-like), oval or roundish, flat, reticulated. 



Stamens diadelphous (9 and 

 Pods of a single 1-seeded joint (sometimes 2-jointed, with 



Herbs with pinnately 3-foliolate leaves, not stipellate. Flowers often polyga- 

 mous, in summer and autumn. (Dedicated to Lespedez, the Spanish governor of 

 Florida in the time of Michaux.) 



a. Stipules subulate-setaceous; bracts minute; calyx-lobes attenuate; 



perennials 6. 



6. Flowers of 2 kinds; the larger (violet-purple) perfect but seldom 

 fruitful, racemose or panicled ; the smaller pistillate and fertile 

 but mostly apetalous, in small sessile clusters or intermixed with 

 the others c. 



c. Petaliferous flowers 1-6, on elongate filiform peduncles, which are 

 mostly 2-4 times as long as their subtending leaves. 



Stems soft-downy with short spreading hairs 1. L. procumbens, 



Stems glabrate or sparingly appressed-pubescent. 



Stems prostrate or trailing ; stipules mostly 2-4.5 mm. long . 2. L. repens. 

 Stems upright ; stipules mostly 5-8 mm. long . . . 3. L. violacta. 



c. Petaliferous flowers few-many ; peduncles stouter, some or all of 



them shorter than the leaves d. 



d. Many of the peduncles elongate and exceeding their subtending 

 leaves. 



